<template>
	<view class="cart-container" v-if="cart.length !==0">
		<!-- 收货地址 -->
		<my-address></my-address>
		<!-- 购物车商品列表标题 -->
		<view class="cart-title">
			<!-- 左侧图标 -->
			<uni-icons type="shop" size="18"></uni-icons>
			<text class="cart-title-text">购物车</text>
		</view>
		<!-- 商品列表 -->
		<!-- 滑动删除 uni-swipe-action-->
		<uni-swipe-action>
			<block :key="i" v-for="(goods,i) in cart">
				<!-- 为子节点提供滑动操作，通过options属性来指定操作按钮的配置信息 -->
				<uni-swipe-action-item :options="options" @click="swiperActionClickHandler(goods)">
					<!-- 设置radio显示 -->
					<my-goods :goods="goods" :showRadio="true" :showNum="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
				</uni-swipe-action-item>
			</block>
		</uni-swipe-action>
		<!-- 商品左侧图片 -->
		<view class="goods-item-left">
			<image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
		</view>
		<!-- 结算 -->
		<my-settle></my-settle>
	</view>
	<!-- 空白购物车 -->
	<view class="empty-cart"  v-else>
		<image src="/static/cart_empty.jpg" class="empty-img"></image>
		<text class="tip-text">空空如也</text>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	
	import {mapState,mapMutations} from 'vuex'
	export default {
		data() {
			return {
				// 操作按钮的配置信息
				options:[{
					text:'删除',	//显示文本内容
					style:{
						backgroundColor:'#c00000'
					}
				}]
			};
		},
		// 购物车数字徽标
		mixins:[badgeMix],
		computed:{
			...mapState('m_cart',['cart'])
		},
		methods:{
			...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
			// 设置商品勾选状态
			radioChangeHandler(e){
				// console.log(e)
				this.updateGoodsState(e)
			},
			// 商品数量变化
			numberChangeHandler(e){
				// console.log(e)
				this.updateGoodsCount(e)
			},
			// 滑动删除操作
			swiperActionClickHandler(goods){
				this.removeGoodsById(goods.goods_id)
			}
		}
	}
</script>

<style lang="scss">
	.cart-container{
		padding-bottom: 50px;
		.cart-title{
			height: 40px;
			display: flex;
			align-items: center;
			font-size: 14px;
			padding-left: 5px;
			border-bottom: 1px solid #efefef;
			.cart-title-text{
				margin-left: 10px;
			}
		}
	}
	.empty-cart{
		display: flex;
		flex-direction: column;
		align-items: center;
		padding-top: 150px;
		.empty-img{
			width: 150px;
			height: 150px;
		}
		.tip-text{
			font-size: 12px;
			color: gray;
			margin-top: 15px;
		}
	}
</style>
